Actinic radiation curable composition

Abstract

An active energy ray curable composition includes a copolymer and a photo-acid generator, the copolymer being obtained by reacting a cocondensate with a polymerizable unsaturated monomer, wherein the cocondensate is obtained by hydrolyzing and condensing a first silane compound having a hydrolyzable silyl group and a second silane compound having a hydrolyzable silyl group, the cocondensate has 0.1 to 3.0 polymerizable unsaturated groups per molecule, the first silane compound is represented by the general formula (I): R 1 —(SiR 2 a (OR 3 ) 3-a ), and the second silane compound is represented by the general formula (II): R 4 —(SiR 2 a (OR 3 ) 3-a )).

What is claimed is: 
     
         1 . An active energy ray curable composition comprising:
 a copolymer; and   a photo-acid generator,   the copolymer being obtained by reacting a cocondensate with a polymerizable unsaturated monomer, wherein   the cocondensate is obtained by hydrolyzing and condensing a first silane compound having a hydrolyzable silyl group and a second silane compound having a hydrolyzable silyl group,   the cocondensate has 0.1 to 3.0 polymerizable unsaturated groups per molecule,   the first silane compound is represented by the following general formula (I):
   R 1 —(SiR 2   a (OR 3 ) 3-a )  (I)
 
   wherein R 1  represents a C1-C10 alkyl group terminally substituted by an epoxy structure containing group; each R 2  independently represents a hydrogen atom or a monovalent hydrocarbon group selected from the group consisting of a C1-C10 alkyl group, a C6-C25 aryl group, and a C7-C12 aralkyl group; each R 3  independently represents a hydrogen atom or a C1-C10 alkyl group; and “a” represents an integer of 0 to 2, and   the second silane compound is represented by the following general formula (II):
   R 4 —(SiR 2   a (OR 3 ) 3-a )  (II)
 
   wherein R 4  is selected from the group consisting of a substituted C1-C10 alkyl group, an alkenyl group, and an unsubstituted or substituted aryl group each terminally having a polymerizable unsaturated group and each having no epoxy structure containing group; each R 2  independently represents a hydrogen atom or a monovalent hydrocarbon group selected from the group consisting of a C1-C10 alkyl group, a C6-C25 aryl group, and a C7-C12 aralkyl group; each R 3  independently represents a hydrogen atom or a C1-C10 alkyl group; and “a” represents an integer of 0 to 2.   
     
     
         2 . The active energy ray curable composition according to  claim 1 , wherein the polymerizable unsaturated monomer is at least one selected from the group consisting of a monomer having a (meth)acryloyl group, a monomer having a vinyl group, a monomer having an aryl group, and a monomer having a styryl group. 
     
     
         3 . The active energy ray curable composition according to  claim 1 , wherein the polymerizable unsaturated monomer is a polymerizable unsaturated monomer having a hydrolyzable silyl group and/or a polymerizable unsaturated monomer having an epoxy group. 
     
     
         4 . The active energy ray curable composition according to  claim 1 , wherein an amount of the photo-acid generator is 0.01 parts by mass to 10 parts by mass relative to 100 parts by mass of the copolymer. 
     
     
         5 . The active energy ray curable composition according to  claim 1 , wherein the photo-acid generator is an aromatic sulfonium salt or an aromatic iodonium salt. 
     
     
         6 . The active energy ray curable composition according to  claim 5 , wherein a counter anion of the photo-acid generator is a fluorophosphonate anion or a fluoroantimonate anion. 
     
     
         7 . An active energy ray curable composition according to  claim 1 , further comprising a pigment. 
     
     
         8 . An active energy ray curable composition according to  claim 1 , further comprising a photosensitizer. 
     
     
         9 . The active energy ray curable composition according to  claim 8 , wherein the photosensitizer is an anthracene derivative, a thioxanthone derivative, or a benzophenone derivative. 
     
     
         10 . A method of forming a cured coating film, the method comprising:
 applying, to a base material, an active energy ray curable composition according to  claim 1 ; and   irradiating the active energy ray curable composition with an active energy ray so that a cured film is formed.   
     
     
         11 . A cured product obtained by applying, to a base material, an active energy ray curable composition according to  claim 1  and irradiating the active energy ray curable composition with an active energy ray so that a cured film is formed. 
     
     
         12 . A laminated product comprising a cured film made of an active energy ray curable composition according to  claim 1 , wherein the cured film is formed on a surface of a base material. 
     
     
         13 . The active energy ray curable composition according to  claim 2 , wherein the polymerizable unsaturated monomer is a polymerizable unsaturated monomer having a hydrolyzable silyl group and/or a polymerizable unsaturated monomer having an epoxy group. 
     
     
         14 . The active energy ray curable composition according to  claim 2 , wherein an amount of the photo-acid generator is 0.01 parts by mass to 10 parts by mass relative to 100 parts by mass of the copolymer. 
     
     
         15 . The active energy ray curable composition according to  claim 3 , wherein an amount of the photo-acid generator is 0.01 parts by mass to 10 parts by mass relative to 100 parts by mass of the copolymer. 
     
     
         16 . The active energy ray curable composition according to  claim 2 , wherein the photo-acid generator is an aromatic sulfonium salt or an aromatic iodonium salt. 
     
     
         17 . The active energy ray curable composition according to  claim 3 , wherein the photo-acid generator is an aromatic sulfonium salt or an aromatic iodonium salt. 
     
     
         18 . The active energy ray curable composition according to  claim 4 , wherein the photo-acid generator is an aromatic sulfonium salt or an aromatic iodonium salt.